Nonlocality may refer to:

• Action at a distance, the concept in physics of nonlocal interactions
  • Principle of locality, the opposite of action at a distance
• Quantum nonlocality, nonlocal phenomena in quantum mechanics
• Nonlocal Lagrangian, a type of Lagrangian (a mathematical function)
• Nonlocal operator, which maps functions on a topological space to functions, in such a way that the value of the output function at a given point cannot be determined solely from the values of the input function in any neighbourhood of any point.

Look up nonlocality in Wiktionary, the free dictionary.

• Locality (disambiguation)
• Nonlocal (disambiguation)

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